TY  - BOOK
ED  - International Rice Research Institute .
TI  - Utilization of the azolla-anabaena complex as a nitrogen fertilizer for rice
PY  - 1977///
CY  - Manila, Philippines
PB  - The International Rice Research Institute
KW  - Azolla as fertilizer
KW  - Rice
KW  - Fertilizers
KW  - Nitrogen fertilizers
ER  -